package file;

import java.io.File;
import java.io.FileFilter;

public class ListFilesDemo2 {
    public static void main(String[] args) {
        File dir=new File(".");
        if (dir.isDirectory()){
            FileFilter filter= file-> {
                    String name=file.getName();
                    return name.endsWith(".txt");
            };
        /*if (dir.isDirectory()){
            FileFilter filter=new FileFilter() {
                @Override
                public boolean accept(File file) {
                    String name=file.getName();
                    return name.endsWith(".txt");
                }
            };*/
            File[]subs=dir.listFiles(filter);
            for (File sub:subs){
                System.out.println(sub.getName());
            }
        }
    }
}
